@book{bhlitem63096, title = {Phases of animal life, past and present }, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/63096}, note = {https://www.biodiversitylibrary.org/bibliography/22528}, publisher = {London, Longmans, Green, and Co, 1892}, author = {Lydekker, Richard,}, year = {}, pages = {286}, keywords = {Animals|Paleontology|Variation|}, }